<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        span {
            display: inline-block;
            font-size: 20px;
            line-height: 1;
            /* width: 50px;
            height: 50px; */
            background-color: green;
            color: black;
            margin-top: 10px;
            padding-top: 20px;
        }
    </style>
</head>

<body>
    <span>ccc
        <div>
            dddd
        </div>
    </span>
</body>

</html>